查询词典 motion valve

The Adolph accurate dynamic model cannot describe the movement of the reciprocating pump valve at the moment of opening, thereby a new accurate dynamic model for describing the motion law of an automatic conical valve is set up, in consideration of the condensability of the fluid, the Westphal's effect, the condition of the continuous flow of fluid and the dynamic characteristic of pump valve's motion.

针对阿道尔夫往复泵泵阀精确运动微分方程在泵阀开启瞬间存在奇点的不足，综合考虑液体可压缩性、魏氏效应、液体连续流条件及泵阀运动的动力特性，建立了描述往复泵自动锥形阀运动规律的精确运动微分方程。

Numerical simulations were done for a bistable latch valve of the system by FLUENT, and three groups of datum for different fluids were obtained with the same effective exit sectional area. Besides, a static mathematic model for the electromagnetic valve was established based on the obtained datum. Secondly, the motion of the valve spool was realized by UDF file in FLUENT. Three kinds of motions, uniform, acceleration and motion driven by the coupling effect of the liquid resistance and the electromagnetic force, were calculated and compared. The dynamic characteristic of the electromagnetic valve was obtained by analyzing the relationship of the mass flow rate of the inside flow field of the electromagnetic valve, the change of the drop pressure of the passageway of the valve, and motion time.

并针对系统中的某双稳态电磁阀，使用商用CFD软件FLUENT对其进行内部流场的数值模拟，通过使用不同流体介质，不改变阀门有效出口截面积的情况下，分析得到的三组数据，建立了该电磁阀的静态数学模型；通过编写UDF文件，实现对阀芯运动方程的控制，在阀门做由闭合到开启、开启到闭合运动时，控制阀芯分别做匀速运动、匀加速运动以及阀芯受到液体阻力与电磁力作用力的耦合力的运动，分析了三种工况下电磁阀内部流场质量流率和阀门出口入口压降的变化以及运动时间，从而得到该电磁阀的动态特性。

It is considered that link wear speed on seal surface is proportional to the contacting pressure. The impacting of valve disk on valve seat is the important reason of abrasive wear, and the relative motion of disk is a main reason for errosion wear of pump valve. The cycles per minute is an important factor to influence the valve motion and the impact force.

结果表明，泵阀密封面联接磨损的磨损速度与密封面上的接触比压成正比，泵的冲次是影响阀盘运动规律及对阀座产生冲击的重要因素，泵阀产生磨粒磨损和疲劳磨损的主要原因是泥浆、阀盘和阀座的冲击，冲蚀磨损导致泵阀的刺蚀。

Lost Motion Minimized- For Type 8510, the taper pin/disc connection and the splined valve shaft with clamped lever and single pivot linkage reduce lost motion between the actuator and valve.

失落的运动最小化，对于类型8510，锥针/盘连接和花键轴与钳制阀杠杆和单支点之间的联系，减少损失的执行器和阀门的议案。

By comparing the motion curves of the valve, it is found that the motion regularities of the ring valve have relations with refrigerant and working conditions of compressor.

通过比较所得到的阀片运动曲线，发现气阀运动规律对于不同工质、工况是有差异的。

In the end, the kinesis analysis and simulation methods of valve train utilizing UG-II/Motion modules are also discussed.

并利用UG-Ⅱ／Motion模块进行配气机构运动分析与仿真。

Development is under way to expand this wireless family with FIELDVUE digital valve controllers, Micro Motion Coriolis flowmeters, and Rosemount analytical products.

正在添加开发中的无线家族产品还有FIELDVUE数字阀门控制器，Micro Motion科氏流量计，以及Rosemount 分析产品。

Development is under way to expand this wireless family with FIELDVUE digital valve controllers, Micro Motion Coriolis flowmeters, and Rosemount analytical products.

正添加开发中无线家族产品还有FIELDVUE数字阀门控制器，Micro Motion科氏流量计，以及Rosemount 分析产品。

Development is under way to expand this wireless family with FIELDV UE digital valve controllers, Micro Motion Coriolis flowmeters, and Rosemount analytical products.

正添加开发中无线家族产品还有FIELDV UE 数字阀门控制器，Micro Motion科氏流量计，以及Rosemount 分析产品。

The particle valve model,obstacle cell valve model as well as the body-fitted valve model representing the valve motion were established.Furthermore,a modified equation about the particle valve model was put forward.

建立了反映气门运动的粒子阻滞模型、障碍物单元模型以及贴体气门模型，并提出计算粒子阻滞的修正公式。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。